40160 - Synchronous 4-Bit Decade Counter

Overview

The 40160 is a synchronous 4-bit decade counter belonging to the 4000 series CMOS logic family. It is designed to count in BCD (Binary-Coded Decimal) sequence from 0 to 9 and then reset to 0, making it ideal for decade counting applications. The device features synchronous operation, meaning all flip-flops are clocked simultaneously, ensuring glitch-free outputs. The 40160 includes parallel load capability, asynchronous reset, and carry look-ahead for cascading multiple counters.

This IC operates over a wide voltage range (3V to 15V), making it suitable for both low-power and high-voltage applications. Its robust design ensures reliable performance in various digital systems, including frequency dividers, timekeeping circuits, and control systems.

Features

• Synchronous Counting: All flip-flops are clocked simultaneously, eliminating counting errors due to propagation delays.
• Decade Counting: Counts from 0 to 9 (BCD) and resets to 0 on the next clock pulse.
• Parallel Load Capability: Allows presetting the counter to any desired BCD value using the parallel data inputs (P0-P3).
• Asynchronous Reset: A high signal on the reset (MR) pin clears the counter to 0 immediately, independent of the clock.
• Carry Look-Ahead: Facilitates cascading multiple counters for higher-digit applications.
• Wide Voltage Range: Operates from 3V to 15V, compatible with TTL and CMOS logic levels.
• Low Power Consumption: Typical power dissipation of 10nW per package at 5V.
• High Noise Immunity: CMOS technology ensures high noise margins.

Applications

The 40160 is widely used in digital systems where decade counting or frequency division is required. Common applications include:

• Frequency Dividers: Used to divide clock frequencies by 10 in timing circuits.
• Digital Clocks: Forms the basic counting element for seconds, minutes, or hours in timekeeping circuits.
• Industrial Control Systems: Employed in process control and automation for counting events or cycles.
• Instrumentation: Used in digital meters and counters for measurement and display purposes.
• Sequential Logic Circuits: Acts as a building block for state machines and control logic.
• Educational Projects: Ideal for teaching digital electronics and counter design.

Electrical Characteristics

Absolute Maximum Ratings

• Supply Voltage (V_DD): -0.5V to +18V
• Input Voltage (V_IN): -0.5V to V_DD + 0.5V
• Operating Temperature Range: -55°C to +125°C
• Storage Temperature Range: -65°C to +150°C

Recommended Operating Conditions

• Supply Voltage (V_DD): 3V to 15V
• Input High Voltage (V_IH): 70% of V_DD
• Input Low Voltage (V_IL): 30% of V_DD
• Clock Frequency (f_CLK): Up to 8MHz at 10V

DC Electrical Characteristics

• Quiescent Current (I_DD): 1µA max at 5V
• Output High Voltage (V_OH): 4.95V min at V_DD = 5V, I_OH = -0.4mA
• Output Low Voltage (V_OL): 0.05V max at V_DD = 5V, I_OL = 0.4mA
• Input Leakage Current (I_IN): ±0.1µA max at V_DD = 15V

AC Electrical Characteristics

• Propagation Delay (t_PD): 200ns max at V_DD = 5V
• Set-Up Time (t_SU): 60ns min at V_DD = 5V
• Hold Time (t_H): 10ns min at V_DD = 5V
• Clock Pulse Width (t_W): 100ns min at V_DD = 5V

Package Information

The 40160 is available in multiple package options to suit different assembly and space requirements. The following packages are commonly available:

• DIP-16 (Dual In-Line Package): 16-pin plastic DIP with 0.3" row spacing.
• SOIC-16 (Small Outline Integrated Circuit): 16-pin surface-mount package with 0.15" body width.
• TSSOP-16 (Thin Shrink Small Outline Package): 16-pin thin surface-mount package for space-constrained applications.

Pin Configuration (DIP-16)

• Pin 1: Clock Input (CP)
• Pin 2: Parallel Load Enable (PE)
• Pin 3: Data Input P0
• Pin 4: Data Input P1
• Pin 5: Data Input P2
• Pin 6: Data Input P3
• Pin 7: Enable Input (TE)
• Pin 8: Ground (V_SS)
• Pin 9: Carry Output (TC)
• Pin 10: Output Q0
• Pin 11: Output Q1
• Pin 12: Output Q2
• Pin 13: Output Q3
• Pin 14: Asynchronous Reset (MR)
• Pin 15: Enable Input (CEP)
• Pin 16: Supply Voltage (V_DD)

Mechanical Dimensions

• DIP-16: 19.3mm x 6.35mm x 4.57mm (L x W x H)
• SOIC-16: 10.3mm x 7.5mm x